Colorado
Snakes in Archuleta County
6 species have been documented here, 2 of them venomous.
Venomous snakes in Archuleta County
Full guide & what to do if bitten →
Western RattlesnakeCrotalus oreganusVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Prairie RattlesnakeCrotalus viridisVenomousHeavy body, broad triangular head, vertical (cat-like) pupils, and a segmented keratin rattle at the tail tip.
Every snake recorded in Archuleta County
Western Terrestrial Garter Snake
Thamnophis elegans
Harmless
Gopher Snake
Pituophis catenifer
Harmless
Smooth Greensnake
Opheodrys vernalis
Harmless
Western Milksnake
Lampropeltis gentilis
Harmless
Western Rattlesnake
Crotalus oreganus
Venomous
Prairie Rattlesnake
Crotalus viridis
Venomous
Compiled from verified GBIF & iNaturalist observations. Informational only.
Snakes in Archuleta County: FAQ
- Are there venomous snakes in Archuleta County, Colorado?
- Yes. 2 venomous snake species have verified records in Archuleta County, Colorado, including Western Rattlesnake, Prairie Rattlesnake. Most snakes in Archuleta County, Colorado, however, are harmless.
- How many snake species live in Archuleta County, Colorado?
- 6 snake species have verified records in Archuleta County, Colorado, of which 2 are venomous.
- What is the most commonly seen snake in Archuleta County, Colorado?
- The Western Terrestrial Garter Snake is the most frequently reported snake in Archuleta County, Colorado, based on verified wildlife observations.
- What should I do if I see a venomous snake in Archuleta County, Colorado?
- Keep your distance and do not try to catch or kill it. Most bites happen when people handle or corner a snake. If someone is bitten, contact local emergency services or poison control immediately.